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  1. or download this
        
use strict;
use warnings;
...
print "Perlversion $]";

print "$_ -> ",ord($_)  for "ß", "\Uß", uc("ß");
  2. or download this
    C:/Strawberry/perl/bin\perl.exe -w d:/tmp/job/eszet.pl 
Perlversion 5.032001
ß -> 223
SS -> 83
SS -> 83